Psychotria
— Navneord
– Engelsk
～ tropical chiefly South American shrubs and trees
psychotropic agent
— Navneord
– Engelsk
～ a chemical substance that can influence human consciousness
psychotropic
— Tillægsord
– Engelsk
～ affecting the mind or mood or other mental processes; "psychoactive drugs"
psychrometer
— Navneord
– Engelsk
～ a hygrometer consisting of a dry-bulb thermometer and a wet-bulb thermometer; their difference indicates the dryness of the surrounding air
psylla
— Navneord
– Engelsk
～ small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices
psyllid
— Navneord
– Engelsk
～ small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices
Psyllidae
— Navneord
– Engelsk
～ jumping plant lice
psyllium
— Navneord
– Engelsk
～ plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative
Plantago psyllium
— Navneord
– Engelsk
～ plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative
psyop
— Navneord
– Engelsk
～ military actions designed to influence the perceptions and attitudes of individuals, groups, and foreign governments
pt
— Navneord
– Engelsk
～ a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits
PT boat
— Navneord
– Engelsk
～ a small fast unarmored and lightly armed torpedo boat; P(atrol) T(orpedo) boat
ptah
— Navneord
– Engelsk
～ a major Egyptian god; shaper of the world; father of gods and men; worshipped especially at Memphis
ptarmigan
— Navneord
– Engelsk
～ large Arctic and subarctic grouse with feathered feet and usually white winter plumage
Pteretis
— Navneord
– Engelsk
～ small genus sometimes included in genus Onoclea; in some classifications both genera are placed in Polypodiaceae
pteridaceae
— Navneord
– Engelsk
～ one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems; Pteridaceae is itself in turn sometimes further subdivided
Pteridium
— Navneord
– Engelsk
～ a genus of ferns belonging to the family Dennstaedtiaceae
Pteridium esculentum
— Navneord
– Engelsk
～ fern of southeastern Asia; not hardy in cold temperate regions
Pteridium aquilinum
— Navneord
– Engelsk
～ large coarse fern often several feet high; essentially weed ferns; cosmopolitan
pteridological
— Tillægsord
– Engelsk
～ of or relating to the study of ferns